PP-Borealis RF365MO
PP-Borealis RF365MO è un copolimero random di polipropilene avanzato e nucleato progettato da Borealis per lo stampaggio a iniezione ad alta velocità di contenitori e chiusure altamente trasparenti. Con un indice di fluidità medio-alto di 20 g/10 min e proprietà organolettiche eccezionali (basso trasferimento di odori e sapori), è molto richiesto per imballaggi a contatto con alimenti, cosmetici e farmaceutici. Jucheng Precision, operando secondo rigorosi standard ISO 9001 e IATF 16949, fornisce soluzioni di stampaggio di precisione e pulite per RF365MO. Utilizzando le nostre oltre 25 macchine CNC a 5 assi interne, costruiamo stampi ad alta precisione con canali caldi bilanciati per prevenire linee di saldatura, massimizzando la trasparenza estetica del materiale.
Borealis RF365MO Optical and Organoleptic Characteristics
Borealis RF365MO is a nucleated random copolymer Polypropylene specially formulated to achieve glass-like optical clarity and strict organoleptic compliance for consumer packaging:
| Attributo fisico e ottico | RF365MO Standard Rating | Packaging Design Advantage |
|---|---|---|
| Haze & Transparency | Nucleated High-Clarity Rating | Provides exceptional, crystal-clear optics on thin-walled parts, allowing end consumers to easily inspect filled product levels. |
| Organoleptic Property | Ultra-Low Odor & Flavor Transfer | Ensures zero smell or taste migration. Fully complies with strict EU and US FDA food contact regulations, maintaining pure product flavor. |
| Equilibrio rigidità-impatto | Tensile Modulus 1150 MPa | Combines high structural rigidity for stackable container designs with good ambient temperature impact resistance (Charpy Notched 5.5 kJ/m²). |
High-Speed Molding Compatibility for RF365MO
With a medium-to-high Melt Flow Rate of 20 g/10 min, Borealis RF365MO flows effortlessly to accommodate fast-cycling machinery:
| Processo di produzione | Molding Strategy for RF365MO |
|---|---|
| High-Speed Thin-Wall Molding | Excellent. The high flow index allows ultra-fast cavity filling for multi-cavity housewares and thin food tubs, significantly shaving down cycles. |
| Threaded Caps & Closures | Excellent. Includes built-in demolding additives, facilitating smooth automatic unscrewing and strip-release of detailed threads. |
| Multi-Cavity Hot Runner Runs | Excellent. Stable flow behaviors under continuous heating, preventing thermal degradation and assuring cosmetic perfection. |
PP-Borealis RF365MO Precision Mold Design & Tooling Guide
Molding an optical-grade copolymer requires careful gate design and uniform mold temperature management to protect clarity and prevent sink marks:
- Preserving High Clarity (Mirror-Surface Molds): Any microscopic roughness on the mold core or cavity will scatter light, causing haze. Jucheng’s tooling division uses hardened mirror-polished S136 stainless steel, ensuring a pristine smooth finish directly from tool release.
- Optimizing Flow & Shear Stress: To prevent “blush” marks and visible weld lines, we analyze gate locations via Moldflow simulation during DFM. We engineer wide valve gates or highly balanced hot runner tips to reduce local shear heating.
- Cooling & Shrinkage Controls: Copolymer shrinkage runs between 1.0% and 2.0% depending on part thickness. We keep mold temperatures uniform at 30°C to 40°C (86°F–104°F) using CNC-machined conformal cooling loops to eliminate warpage and prevent sink marks.
- Processing Temperatures: Melt temperatures are managed at 210°C–260°C (410°F–500°F). High-speed injection profiles are applied, supported by an optimized holding pressure of 200–500 bar to secure structural density.
Key Application Fields for PP-Borealis RF365MO
- Premium Food Packaging: High-clarity microwaveable containers, thin-walled storage tubs, snap-on food container lids, and clear plastic cups.
- Cosmetic & Personal Care Closures: Crystal-clear flip-top caps, thick-walled cosmetic jar covers, dispenser closures, and luxury perfume cap inserts.
- Medical Diagnostics & Laboratory: Non-sterilized analytical clear trays, sample vials, transparent diagnostic cuvettes, and microfluidic accessories.
Proprietà
| Densità | 0.905 g/cm³ |
| Indice di fluidità a caldo (MFR) (230°C/2,16 kg) | 20 g/10 min |
| Resistenza a trazione allo snervamento | 29 MPa |
| Allungamento a trazione allo snervamento | 11 % |
| Modulo a trazione | 1,150 MPa |
| Modulo a flessione | 1,100 MPa |
| Resistenza all'urto Charpy con intaglio (23°C) | 5.5 kJ/m² |
| Durezza Rockwell (scala R) | 82 - |
| Temperatura di fusione | 150 °C |
| Temperatura di distorsione al calore (HDT @ 0.45 MPa) | 75 °C |
| Ritiro da stampaggio lineare | 1.0 - 2.0 % |
| Dimensione massima del pezzo | 800 x 600 mm |
| Dimensione minima del pezzo | 1 x 1 mm |